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A037393 Numbers k such that every base-5 digit of k is a base-6 digit of k. 6
1, 2, 3, 4, 6, 12, 18, 24, 31, 46, 56, 62, 75, 81, 87, 90, 91, 92, 93, 94, 99, 118, 124, 145, 150, 157, 226, 232, 243, 245, 291, 300, 306, 307, 308, 311, 312, 314, 322, 326, 332, 336, 337, 338, 341, 362, 372, 374, 378, 411, 416, 418 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
PROG
(Haskell)
import Data.List ((\\), nub)
a037393 n = a037393_list !! (n-1)
a037393_list = filter f [1..] where
f x = null $ nub (ds 5 x) \\ nub (ds 6 x)
ds b x = if x > 0 then d : ds b x' else [] where (x', d) = divMod x b
-- Reinhard Zumkeller, May 30 2013
CROSSREFS
Sequence in context: A029952 A140494 A048316 * A048330 A118651 A206292
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified March 29 01:36 EDT 2024. Contains 371264 sequences. (Running on oeis4.)